JP2018520819A5 - - Google Patents

Claims (20)

An anchor system for securing soft tissue to bone, comprising:
An implant having a non-deployed configuration and a deployed configuration, wherein the implant is fixable to an adjacent bone when in the deployed configuration;
A core connected to the implant, the core connecting the first portion to the implant with a first portion having an expandable surface area movable between a non-collapsed configuration and a deployed configuration; A first portion of the core provides a pathway for cells to migrate from within the bone to the interface between the bone and the soft tissue to promote healing at the interface of the bone and soft tissue The core, which is composed of a material that is adapted as
A shielding structure disposed around the core to protect the core when the core is inserted into a position adjacent to the desired bone and soft tissue interface;
, An anchor system.   The anchor system according to claim 1, wherein the shielding structure comprises a sheath.   The anchor system according to claim 2, wherein the sheath comprises a plurality of openings disposed in the sheath.   The anchor system according to claim 1, further comprising an inserter including a sleeve that holds the implant and the core in place in their undeployed configuration prior to deployment.   5. The anchor system of claim 4, further comprising a proximal actuator for deploying the implant.   5. The anchor system of claim 4, wherein the first portion of the core is moved to its expanded deployed configuration when the inserter is withdrawn proximally. The core comprises a collapsible thin scaffolding sheet formed of a polymer having alignment fibers disposed therein, wherein a first portion of the core comprises a paddle portion and a second portion of the core is an elongated portion 3. The anchor system of claim 2 , wherein the second portion of the core engages a corresponding elongated portion of the sheath when the core is in its undeployed configuration.   When the paddle portion of the core is in its expanded deployed configuration, the paddle portion is adapted to be sandwiched between the bone surface and the adjacent soft tissue material, and the alignment fiber disposed in the paddle portion is 8. The anchor system according to claim 7, adapted to align with the direction of migration of cells from bone marrow into the soft tissue in a bone plane.   9. The anchor system of claim 8, wherein the core is comprised of 85/15 L lactide / glycolide polymer electrospun to the thin scaffold sheet.   The anchor system according to claim 1, wherein the implant comprises a full suture anchor.   5. The anchor system of claim 4, wherein a second portion of the core is wound around a shaft of the inserter prior to deployment of the second portion of the core.   The anchor system according to claim 2, wherein the sheath is manufactured from a thin sheet of PEEK.   The anchor system of claim 1, wherein the shielding structure comprises a two-piece anchor.   The two-piece anchor comprises a distal anchor piece and a proximal anchor piece, and the core is disposed between the distal anchor piece and the proximal anchor piece prior to deployment of the first portion of the core The anchor system according to claim 13.   15. The anchor system of claim 14, wherein a second portion of the core is disposed between the distal anchor piece and a proximal anchor piece prior to deployment of the first portion of the core.   The anchor system according to claim 15, further comprising an inserter including a sleeve that holds the first portion of the core in place in its undeployed configuration prior to deployment. An insert for use in a soft tissue anchor system,
A core adapted to be implanted together with an implant at a treatment site having an interface of bone and soft tissue, wherein the core comprises an expandable surface area movable between contracted non-deployed and expanded deployed configurations. And a second portion connected to the first portion, wherein the first portion of the core is for cells to move from within the bone to the interface between the bone and the soft tissue. A core comprised of a material adapted to provide a pathway to promote healing at the bone and soft tissue interface;
A shielding structure disposed around the core to protect the core when the core is inserted into a position adjacent to a desired bone and soft tissue interface, wherein the shielding structure is a core of the core A shielding structure connected in two parts;
, Insert.   The insert according to claim 17, wherein the shielding structure comprises a two-piece anchor. The two-piece anchor comprises a distal anchor piece and a proximal anchor piece, and the core is disposed between the distal anchor piece and the proximal anchor piece prior to deployment of the first portion of the core. An insert according to claim 18. 20. The insert according to claim 19, wherein a second portion of the core is disposed between the distal anchor piece and a proximal anchor piece prior to deployment of the first portion of the core.